Science ❯ Physics

Relativity

General Relativity Time Dilation Time Measurement Einstein's Theories Gravitational Waves Special Relativity Relativistic Jets Spacetime Gravitational Effects Space-Time Light Speed Time Relativistic Effects Special Theory of Relativity Motion Speed of Light Relativistic Particles Astrophysics Gravitational Wave Detection Einstein's Theory General Theory of Relativity Space Exploration Albert Einstein Gravitational Time Dilation Statistical Relativity Experimental Physics Numerical Relativity Timekeeping Relativistic Stars Testing Theories Gravitational Wave Astronomy Lorentz Invariance Relativistic Mechanics

Early-Universe Quasar Defies Models With 13 Times the Eddington Limit, Bright X-Rays and a Radio Jet

Researchers suggest a brief post–inflow-burst phase could explain the unexpected X-ray corona with a radio jet.

NIST Finds Mars Clocks Run 477 Microseconds Faster Per Earth Day

Voyager 1 Nears One Light-Day From Earth, With Two-Day Command Cycles Ahead

Record-Setting Day-Long GRB 250702B Confirmed at z = 1.036 as Origin Remains Unsettled

Day-Long, Repeating Gamma-Ray Burst From Distant Galaxy Challenges Standard Models

Entangled Clock Network Enables First Test of Quantum Mechanics in Curved Spacetime

Physicist Proposes Three-Dimensional Time as Universe’s Fundamental Framework